An eye for an eye makes the whole world blind.

Mahatma Gandhi

All generalizations are false, including this one.

Mark Twain

The squeaky wheel gets the grease.

English Proverb

The person who says it cannot be done should not interrupt the person who is doing it.

Chinese Proverb

Of all your troubles, great and small, the greatest are the ones that don't happen at all.

Thomas Carlyle

Trees refuse no one their shade, not even the woodcutter.

Hindu Proverb